Designing Power MOSFET Circuits - Circuit Tips and Tricks

-- Follow Up Video --

Designing Power MOSFET Circuits - Circuit Tips and Tricks

MOSFET circuit design and selection is a commonly requested topic for me to cover. There are a lot of uses for MOSFETs, as a result, they have become more commonplace than standard BJT or NPN transistors, especially in high-power applications. I will cover information and equations needed to design useful circuits without getting "down in the weeds" with complicated derivations

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-- User Submissions --

[Graham_Wideman]

Problem! It's great that you're making videos like this, but I think the power calculation is a bit off. if you're going to deliberately slow the on-off and off-on transitions, then those transition times are durations when the MOSFET will have to conduct significant current while exhibiting significant resistance. This can easily dominate the heat output.

[Roody]

Just the first 5 minutes, and I can totally say THIS is the way to explain things. Clear, simple, direct, practical examples. I've seen tons of videos about the same topic, and none of them were useful at all.
Man, you deserve credit. Thank you for the vid.

[Blandified]

This is incredible, thanks so much! I especially love how you explain WHY you do certain things. A lot of videos say "oh just do this, put this resistor here" then they move on. But you explain WHY certain things go there. I love it cause it helps me learn!

[damnyutoobe]

Perfectly practical introduction into using a mosfet with MCUs.

[KholyScript]

I've never seen a video that holds all the information needed in less than half an hour! Right into the point like an arrow! Well done.

[bimmerboard]

I have a degree in EE, but I never had such a clear explanation from any of my professors back in school. Well done!

[truthorhappiness]

This has been the most helpful video on MOSFET's I've seen yet. Thank you!

[houtmann]

A concise, to the point explanation in a language the 'mortal' being can understand without the 'gobbledygook' and 'dreaded' calculus. Great stuff, keep it up!

[wouldntyouliketoknow]

"Theres not a whole lot of in between" - I have observed this on many topics. It is the curse of the internet. So much information, so little relevant information.

[og.StudMuffin]

Wow.. you make things so much easier to understand. You dont assume we know anything at all and its great. Everything you say if it isnt obvious, you breifly explain what you meant in laymans terms. Thank you!

[barry]

Extremely well explained thanks, I still have a long way to go but with tutorials like this half the battle is won

[warrenmondon]

WOW. Great job...I learnt without frowning and scrunching up my face. The information just went straight in. I will be watching ALL of your videos. Thank you.

[mth]

Now that was an excellent explanation! This is probably one of the clearest and and most thoroughly explained videos about any electronics topics that I have ever seen (and there are quite a few great ones out there). Very well done. Thank you!

[willbill]

I never thought about that gate inrush current before! And here I was with just a 10K pull down for my Arduino.

[johnmcclain]

Hi, I've worked with electronics from the early sixties, learning on crystal radios, and building from there, out of hobby books, spent two decades in the Marines in aviation electronics, communications, navigation equipment, and never got the detailed depth of understanding you've given, outside of the exact aspects I worked on, and had specific engineering problems with, and got an engineer involved. You've done a great job of showing the reasons for selection of specific components, values, for a rather general application, one that varies widely, but not such that it negates the broad application.
I've built such driver circuits from kits, without knowing the reason for selection, and I've built them out, trial and error, and didn't know exactly why they failed, or why this one succeeded, or how much by. A very professional production, without too much detail on this specific motor application. Thanks, still trying to learn. Semper Fidelis

[anelson]

Easily, by far, the best guide to real-world use of MOSFETs on Youtube. Not a home run - a grand slam. It absolutely accomplished the goals stated at the start: genuinely useful, while steering clear of the weeds that others let their viewers/students get lost in. Definitely sets the new high-water mark for the MTE channel. Looking forward to whatever comes next! Thanks much.

[VeryMuchBlessed]

Just saw the comment below on hooking Mosfets up in parallel. Circuit would consist of two, three, or more Mosfets with all Gates joined, all Drains joined, and all Sources joined, apparently for driving really HUGE loads that one Mosfet could not handle. One YouTube video regarding this is called "Issues on Connecting MOSFETs in Parallel" and addresses some of the problems. It seems that the electric vehicles would have to have multiple banks of Mosfets just to propel the vehicles down the road. Would like to hear your thoughts on this. Thanks again. Great videos.

[stanspb]

This showed up in recommended channels....how did it know I was working on a large smps for a power amp with blown MOSFETS at that moment. It was a design I did and surely the YouTube masterminds were trying to tell me something. Very well explained and the production values of your videos are welcome indeed. Thank you. Why only 6k subs? It is 6k +1 now.

[richardandrews]

So I needed to refresh myself with a single concise tut on MOSFET's and I found it. Bravo.

[dxfvjib]

This is an absolutely superb presentation. This mechanical engineer is now in with a fighting chance of building a simple dc switch which demands effectively zero gate current once energised. Thank you for improving my education with no pain.